SAN FRANCISCO — Wearing a hoodie may be the least of Mark Zuckerberg’s problems now that Facebook Inc. has become a public company.

Facebook’s 28-year-old founder and chief executive took some flak for his attire when the social-networking giant was pitching its initial public offering to investors. Zuckerberg will remain Facebook’s most-powerful shareholder after what has turned out to be a modestly successful IPO.

But after an impressive run as tech entrepreneur-slash-trailblazer, Zuckerberg must now pivot to a new role — that of corporate executive who must answer to host of new stakeholders led by Wall Street.

One corporate governance expert says the Zuckerberg post-IPO control of Facebook should shield him from corporate or regulatory pressures that the company will inevitably wrestle with. Zuckerberg will retain 55.8 percent of the voting power of Facebook’s outstanding shares.

He will also have “the ability to control the outcome of matters submitted to our stockholders for approval, including the election of our directors, as well as the overall management and direction of our company,” according to a Facebook filing with the Securities and Exchange Commission.

But despite all that power, experts say, Zuckerberg may face the toughest chapter in his career.

On the one hand, the fact that Zuckerberg — who has joined the ranks of other tech pioneers such as Steve Jobs, Bill Gates and Google founders Larry Page and Sergey Brin — will still be in charge may be what has drawn some investors to Facebook, argued Santa Clara University law professor Stephen Diamond.

“From the point of view of investors, it might be viewed as an advantage,” he said, noting that investors may be saying: “Mark Zuckerberg is the person we want to invest in.”

Zuckerberg’s “skill set is what got the company where it is today — that’s what they think they’re investing in,” he added.

“The problem is that if things go wrong — and something will go wrong — shareholders are likely to be concerned that Zuckerberg may not be capable of dealing with some of these challenges,” he said. Those concerns, he noted, are “what the hoodie debate is about.”

“It’s basically a substitute for discussing the implication of having so much power in a single individual,” he said. An individual, he noted, who is “young and relatively inexperienced.”

And that apparent inexperience has led to what some analysts see as some jolting decisions. They point to Facebook’s $1 billion purchase of Instagram, the online photo-sharing site, which reportedly surprised members of the company’s board.

Wedbush analyst Michael Pachter said Zuckerberg now has to deal with investors, “and he may not find it very much fun.”

“The majority has acquiesced in giving voting control to Zuckerberg so he can essentially do what he likes,” he said. “But if they are unhappy with his decisions, they will be vocal about it.”

Still, Diamond noted that “with the significant ownership in Zuckerberg’s hands, I think it will be a long period of time before they are overly concerned about quarter-to-quarter numbers.”

“People are ecstatic, so that would buy them time,” he added.

It’s time that Zuckerberg could use to learn from other young entrepreneurs and tech pioneers who suddenly found themselves leading corporate behemoths that faced intense public scrutiny.

“He has the advantage of having seen how they dealt with it,” Diamond said.

Zuckerberg has kept the CEO role, but brought in Sheryl Sandberg, a highly respected tech executive, as chief operating officer.

Diamond said Facebook took the “traditional” approach: “The guy who has the most chips, runs the show.”